2078378286 has 16 divisors (see below), whose sum is σ = 4175399424. Its totient is φ = 689685624.

The previous prime is 2078378249. The next prime is 2078378287. The reversal of 2078378286 is 6828738702.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078378287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775336 + ... + 778011.

It is an arithmetic number, because the mean of its divisors is an integer number (260962464).

Almost surely, 2^2078378286 is an apocalyptic number.

2078378286 is an abundant number, since it is smaller than the sum of its proper divisors (2097021138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2078378286 is a wasteful number, since it uses less digits than its factorization.

2078378286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553575.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 2078378286 is about 45589.2343212737. The cubic root of 2078378286 is about 1276.1690236258.

The spelling of 2078378286 in words is "two billion, seventy-eight million, three hundred seventy-eight thousand, two hundred eighty-six".